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INTANGIBLE ASSETS Estimated Future Intangible Amortization Expense (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
2019 $ 8,600  
2020 6,998  
2021 5,695  
2022 4,634  
2023 3,771  
Thereafter 13,906  
Net Book Value $ 43,604 $ 57,045